#21688C#21688C

#21688C is a mid, moderate cyan. Relative luminance 0.121; OKLCH L 49.1% C 0.089 H 235.2°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#21688C
RGB	rgb(33, 104, 140)
HSL	hsl(200, 62%, 34%)
HSV	hsv(200, 76%, 55%)
CMYK	cmyk(76.4%, 25.7%, 0%, 45.1%)
CIE-LAB	lab(41.40, -8.96, -26.06)
CIE-LCH	lch(41.40, 27.56, 251.02°)
OKLab	oklab(49.08% -0.051 -0.0734)
OKLCH	oklch(49.08% 0.089 235.2)
XYZ	xyz(10.3093, 12.1162, 26.6012)
Luminance	0.1212 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21688C #8C4521

analogous

#218C7B #21688C #21338C

triadic

#21688C #8C2168 #688C21

tetradic

#21688C #7B218C #8C4521 #338C21

square

#21688C #7B218C #8C4521 #338C21

split-complementary

#21688C #8C2133 #8C7B21

monochromatic

#0A1E29 #15435A #21688C #2D8DBE #51A9D6

Accessibility & contrast

On white

6.13

#21688C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#21688C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21688C

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21688C	#FFFFFF	#000000	##FFFFFF
##21688C	1.00	6.13	3.42	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57678E

Deuteranopia (green-blind)

#485D8B

Tritanopia (blue-blind)

#007174

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #21688c;
/* rgb */ color: rgb(33, 104, 140);
/* oklch */ color: oklch(49.1% 0.089 235.2);

Tailwind

colors: {
  custom: {
    50: '#6c93ad',
    500: '#21688c',
    950: '#000000',
  },
}

SCSS

$custom: #21688c;
$custom-light: #6c93ad;
$custom-dark: #000000;

JSON

{
  "hex": "#21688c",
  "rgb": {
    "r": 33,
    "g": 104,
    "b": 140
  },
  "hsl": {
    "h": 200.187,
    "s": 61.85,
    "l": 33.922
  },
  "oklch": {
    "l": 0.49075,
    "c": 0.08941,
    "h": 235.2
  },
  "luminance": 0.12117
}

Semantic roles & 50–950 ramp

primary

#21688C

secondary

#B9734F

accent

#7943E5

background

#F7F9FA

surface

#EDF1F4

border

#C8CBCE

text

#080D10

muted

#7B7E7F

Preview Lab

Preview with #21688C

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →